ETS-Lindgren 3106B Owner's manual

Model 3106B

Double-Ridged

Waveguide Horn

User Manual

ii |

ETS-Lindgren L.P. reserves the right to make changes to any product described

herein in order to improve function, design, or for any other reason. Nothing

contained herein shall constitute ETS-Lindgren L.P. assuming any liability

whatsoever arising out of the application or use of any product or circuit

described herein. ETS-Lindgren L.P. does not convey any license under its

patent rights or the rights of others.

of this document may be copied by any means without written permission

from ETS-Lindgren L.P.

Trademarks used in this document: The ETS-Lindgren logo is a trademark of

ETS-Lindgren L.P.

Revision Record | MANUAL, 3106B | Part #399785, Rev. B

Revision Description Date

A Initial Release September, 2006

B Added optional connectors

information; rebrand

November, 2008

| iii

Table of Contents

Notes, Cautions, and Warnings ................................................ v

1.0 Introduction .......................................................................... 7

Optional Components .................................................................................... 8

Connectors ............................................................................................ 8

Tripod Options ....................................................................................... 9

ETS-Lindgren Product Information Bulletin ................................................. 10

2.0 Maintenance ....................................................................... 11

Annual Calibration ....................................................................................... 11

Optional Parts .............................................................................................. 11

Service Procedures ..................................................................................... 11

3.0 Specifications ..................................................................... 13

Electrical Specifications ............................................................................... 13

Physical Specifications ................................................................................ 13

Power Rating ............................................................................................... 13

4.0 Mounting Instructions ....................................................... 15

Additional Mounting Options ........................................................................ 16

7-TR and Mast Mounting Options ........................................................ 16

2x2 Boom Mounting Options ............................................................... 17

5.0 Application ......................................................................... 19

6.0 Typical Data ........................................................................ 21

Model 3106B Typical Antenna Factor .......................................................... 21

Model 3106B Typical Gain ........................................................................... 22

Model 3106B Typical VSWR ....................................................................... 23

Model 3106B Typical Half-Power Beamwidth .............................................. 24

Model 3106B Typical Measured Radiation Patterns .................................... 25

400 MHz .............................................................................................. 25

800 MHz .............................................................................................. 26

1000 MHz ............................................................................................ 26

2000 MHz ............................................................................................ 27

Appendix A: Warranty ............................................................. 29

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| v

Notes, Cautions, and Warnings

Note: Denotes helpful information intended to

provide tips for better use of the product.

Caution: Denotes a hazard. Failure to follow

instructions could result in minor personal injury

and/or property damage. Included text gives proper

procedures.

Warning: Denotes a hazard. Failure to follow

instructions could result in SEVERE personal injury

and/or property damage. Included text gives proper

procedures.

See the ETS-Lindgren Product Information Bulletin for safety,

regulatory, and other product marking information.

vi |

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Introduction | 7

1.0 Introduction

The ETS-Lindgren Model 3106B Double-Ridged Waveguide Horn is a linearly

polarized broadband antenna covering a frequency range of 200 MHz to

2.5 GHz. The Model 3106B was designed and built specifically for EMI

measurements and specification compliance testing.

Although rated to 2.5 GHz, measured antenna factor (AF) values are supplied to

3 GHz. The Model 3106B can be used for radiated emissions (RE) testing to

3 GHz, provided that an attenuator is used at the feed to reduce the high VSWR

above 2.7 GHz.

The Model 3106B has high gain and excellent VSWR characteristics over its

entire frequency range. It is especially effective for generating high

electromagnetic fields with relatively low power input. The antenna is also useful

for receiving low level signals where high gain characteristics are needed.

The Model 3106B is precision machined from aluminum, making it lightweight

and durable. A 50 V Type N female connector is mounted on the base block of

the antenna, providing increased power handling.

Two brackets

are attached to

the sides of the

Model 3106B

so it can be

polarized either

horizontally or

vertically.

A variety of mounting options are available for the Model 3106B. For information,

see Mounting Instructions on page 15.

8 | Introduction

Optional Components

CONNECTORS

The standard Model 3106B provides a Type N connector. As an alternative, the

Model 3106B may be ordered with an SC connector or with a 7/16 DIN

connector.

Type N Connector (Standard)

SC Connector (Optional) 7/16 DIN Connector (Optional)

Introduction | 9

TRIPOD OPTIONS

ETS-Lindgren offers the following nonmetallic, non-reflective tripod for use at

both indoor and outdoor EMC test sites.

• 7-TR Tripod—Constructed of PVC and

fiberglass components, providing

increased stability for physically large

antennas. The unique design allows for

quick assembly, disassembly, and

convenient storage. Allows several

different configurations, including options

for manual or pneumatic polarization.

Quick height adjustment and locking

wheels provide ease of use during

testing. Maximum height is 2.17 m

(85.8 in), with a minimum height of .8 m

(31.8 in). This tripod can support a

13.5 kg (30 lb) load.

Model 3106B

shown mounted onto 7-TR

with 3106B centerline rotation boom

The following 7-TR booms are available for the Model 3106B:

• 109042 boom—Straight boom; for general antenna mounting on a

7-TR

• 106328 boom—Offset boom; for general antenna mounting on a

7-TR with pneumatic or manual polarization

• 108507 boom—Centerline rotation boom; when changing

polarization, maintains centerline rotation (for Model 3106B only)

10 | Introduction

ETS-Lindgren Product Information Bulletin

See the ETS-Lindgren Product Information Bulletin included with your shipment

for the following:

• Warranty information

• Safety, regulatory, and other product marking information

• Steps to receive your shipment

• Steps to return a component for service

• ETS-Lindgren calibration service

• ETS-Lindgren contact information

Maintenance | 11

2.0 Maintenance

Before performing any maintenance, follow

the safety information in the ETS-Lindgren

Product Information Bulletin included with

your shipment.

WARRANTY

Maintenance of the Model 3106B is limited

to external components such as cables or

connectors.

If you have any questions concerning

maintenance, contact ETS-Lindgren

Customer Service.

Annual Calibration

See the Product Information Bulletin included with your shipment for information

on ETS-Lindgren calibration services.

Optional Parts

Following are the part numbers for ordering optional parts for the Model 3106B

Double-Ridged Waveguide Horn.

Part Description Part Number

7-TR Tripod, 3106 Mount, Pneumatic 7-TR/POL-3106

Boom Assembly, 3106 Antenna Mounting 108507

Service Procedures

For the steps to return a system or system component to ETS-Lindgren for

service, see the Product Information Bulletin included with your shipment.

12 | Maintenance

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Specifications | 13

3.0 Specifications

Electrical Specifications

Frequency Range: 200 MHz – 2.5 GHz

VSWR Ratio (Average): <1.6:1

Maximum Continuous Power: 800 W

Peak Power: 800 W

Impedance: 50 ς

Connector: Type N female

Front-to-Back Ratio: 20 dB

Cross Polarization: 20 dB minimum

Physical Specifications

Height: 72.9 cm (28.7 in)

Width: 93.3 cm (36.7 in)

Depth: 97.8 cm (38.5 in)

Weight: 11.8 kg (26.0 lb)

Power Rating

Type N Connector: < 300 MHz 1 kW

300 MHz–1 GHz 500 W

1 GHz–2 GHz 300 W

SC Connector: < 300 MHz 1 kW

300 MHz–1 GHz 500 W

1 GHz–2 GHz 300 W

7/16 DIN Connector: < 300 MHz 1.5 kW

300 MHz–1 GHz 750 W

1 GHz–2 GHz 500 W

14 | Specifications

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Mounting Instructions | 15

4.0 Mounting Instructions

Before connecting any components, follow the

safety information in the ETS-Lindgren

Product Information Bulletin included with your

shipment.

Mount the antenna to an ETS-Lindgren 7-TR Tripod with a standard

1/4–20 mounting stud.

Model 3106B shown mounted onto 7-TR with 3106B centerline rotation boom

Due to the size of the Model 3106B, do not

mount the antenna onto a 4-TR tripod.

16 | Mounting Instructions

Additional Mounting Options

7-TR AND MAST MOUNTING OPTIONS

Following are additional options for mounting the Model 3106B onto a

7-TR tripod. Contact the ETS-Lindgren Sales Department for information on

ordering optional mounting hardware.

Mast refers to 2070 Series, 2075, and 2175 Antenna Towers.

See page 9 for a description of 7-TR booms available for the

Model 3106B.

Mounting Instructions | 17

2X2 BOOM MOUNTING OPTIONS

Following are additional options for mounting the Model 3106B onto a 2x2 boom.

Contact the ETS-Lindgren Sales Department for information on ordering optional

mounting hardware.

2x2 boom refers to a typical 2-inch by 2-inch boom.

18 | Mounting Instructions

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Application | 19

5.0 Application

Each Model 3106B Double-Ridged Waveguide Horn is individually calibrated

during the manufacturing process. Using the three-antenna method of calibration

per specification ARP-958, apparent gain at 1.0 meters from the end of the

antenna is determined and used to check conformance to the antenna

factor (AF).

The antenna factor should be used in specification compliance testing to convert

receiver reading (dBuV) to field intensity units (dBuV/m). The conversion is

accomplished by adding the antenna factor in dB to the receiver reading in dB

above 1 microvolt. To produce specific field strengths at 1-m spacings, use the

following equation:

()

E

Pg

d

V/m =

30

d = distance, in meters

g = numeric gain (10

G[dB]/10

)

P = antenna net input power, in watts

20 | Application

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ETS-Lindgren 3106B Owner's manual

ETS-Lindgren 3106B Owner's manual

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